When I went to BYU to get my MFA, mid-70's, housing in town was beat up and overpriced, so I lived in the dorms again.
I was in the older dorms, built in the late 1950's (newer high-rise dorms on the hill, built in early 1970's); brick, three floors, two wings on each floor, with a big common area (sofas and couches, lots of carpet where guys wrestled each other or just visited) in the middle. Typically, only friends would visit your dorm room; otherwise you'd meet in the common area. Thirty guys per wing. (single-sex dorms). In the middle of each wing a bathroom along one side.
Outer room had a row of sinks and mirrors on one side, three urinals and three toilets with doors on the other.
Shower room, all green tiled and pretty well lighted. Hangers and tiled benches around three sides, and a more or less square walled (about 7' tall walls...the steam gathered on the ceiling, vented from there by a fan that was running whenever the lights were on) shower room in the middle. Shower heads for four (usually occupied by one person, but you could squeeze in up to 8 guys if you didn't mind sharing. There was a lot of room in the middle, where all the water drained), more or less in the corners. Nice water pressure, never ran out of hot water. Bring your own soap and shampoo or borrow from fellow showerers: no dispensers in the dorm showers, though the gym showers had both when they were filled.
Crowded at the usual times: morning before class, afternoons after it got too dark to play sports outside, evenings before Friday and Saturday date nights. There were a few guys who showered at night, but most kept a morning schedule.
(If you lived in the dorm, you had to sign up for linen service. At least you were getting clean sheets and towels every week. There was a cleaning staff who emptied trash cans and vacuumed the rooms every day, and swapped towels and sheets with you weekly. If you weren't in your room when they came through, they'd leave a bundle of towels and sheets on your bunk, and it was up to you to make your bed and turn in the used sheets. The cleaning people never made beds.)
Casual nudity. Some guys wore bathrobes down the hall. A few guys in underwear, but most common were nude guys, carrying towels. Very few guys wore towels around their waists. Even the guys wearing robes, took them off as they entered the shower room. Lots of chitchat among naked guys, waiting to shower, or under the water. Very friendly.